Attachment 1- Locomotive Jacks Specifications.pdf

WORK SPECIFICATIONS FOR LOCOMOTIVE ELECTRIC JACKS

1. SCOPE

a. Purchase of Locomotive Electric Jacks: Whiting Model MAL Portable Electric Jacks or equal.

Number of Sets: One (1) ‐ Set

Jacks per Set: Four (4)

Capacity: 35 Ton

2. REQUIREMENTS

a. LIFTING BRACKET:

Hoisting/Lowering Speed: 9 Inches per Minute Low Position: 2’‐3" High Position: 8’‐3”above Jack Base Plate Total Effective Lift: 6’‐0”

b. ELECTRICAL:

Master Control Receptacle(s) shall be furnished with Jacks #1 & #4 for attachment of pendant control with cable and plug. There shall be a Selector Switch on Jack #1 for pendant control from Jacks #1 or #4 and an “Emergency Stop” button at each jack control panel.

Motors: HP Electrical Service: 460V ‐ 3PH ‐ 60HZ

c. MOTOR AND CONTROLS:

Each Jack shall be equipped with a totally enclosed, intermittent duty, hoist type motor with an integrally mounted disc brake and a NEMA size magnetic across‐the‐line reversing starter. Each starter shall be complete with overload protection, a transformer for reducing the voltage in the control circuit to 120 volts and “Up‐ Down” push buttons mounted in the front cover; all in a NEMA type 12 enclosure.

Each set of Jacks shall include one (1) pendant master push button station in a weatherproof enclosure attached to 25 feet of control cable. Jacks shall be equipped with receptacle(s) as specified, capable of receiving the plug on the control cable. This will allow the operator to stand where he/she can see and properly control the hoist and lowering operations of the set of Jacks. Jacks may be operated individually by push button in motor starter cover.

Emergency stop buttons shall be on each Jack control panel.

d. ELECTRICAL CABLES:

Electrical cables shall include 75 feet of main power cable complete with plug and a main power outlet receptacle. The interconnecting power and control cables, plugs and receptacles for the set of Jacks shall be furnished complete in the following configuration:

75 feet between Jacks #1 and #3; 35 feet between Jacks #1 and #2 as well as Jacks #3 and #4.

3. OPTIONAL FEATURES TO BE INCLUDED:

a. Zero Speed Shutdown System: Automatically shuts down all jacks in a set if one jack screw stops turning.

b. Upper Over travel Limit Switch: Prevents over travel of the lifting bracket in the event of failure of the operating upper limit switch.

4. SHIPPING ADDRESS:

Defense NTG & Rail Equipment Center Building 1722, 6233 Aspen Ave Hill Air Force Base, UT 84056

5. WARRANTY:

a. Twelve (12) months from equipment ship date.

6. MANUAL:

a. The Vendor shall provide one (1) electronic copy in Adobe PDF format on a flash drive of the standard Operation and Maintenance Manual. Included in it will be standard operating and maintenance instructions. Sufficient drawings shall be included to allow parts identification for replacement.